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Merge pull request #3966 from nextcloud/downstream-26570 

Override config.php values through environment variables
This commit is contained in:
Lukas Reschke 2017-04-13 10:51:09 +02:00 committed by GitHub
parent 7cb6038fca 95a21e2f2a
commit 01f3698175
2 changed files with 33 additions and 2 deletions
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14
lib/private/Config.php
View File

@ -39,6 +39,9 @@ namespace OC;
* configuration file of ownCloud.
*/
class Config {
const ENV_PREFIX = 'NC_';
/** @var array Associative array ($key => $value) */
protected $cache = array();
/** @var string */
@ -71,15 +74,22 @@ class Config {
}
/**
* Gets a value from config.php
* Returns a config value
*
* If it does not exist, $default will be returned.
* gets its value from an `NC_` prefixed environment variable
* if it doesn't exist from config.php
* if this doesn't exist either, it will return the given `$default`
*
* @param string $key key
* @param mixed $default = null default value
* @return mixed the value or $default
*/
public function getValue($key, $default = null) {
$envValue = getenv(self::ENV_PREFIX . $key);
if ($envValue !== false) {
return $envValue;
}
if (isset($this->cache[$key])) {
return $this->cache[$key];
}

21
tests/lib/ConfigTest.php
View File

@ -48,6 +48,27 @@ class ConfigTest extends TestCase {
$this->assertSame(array('Appenzeller', 'Guinness', 'Kölsch'), $this->config->getValue('beers'));
}
public function testGetValueReturnsEnvironmentValueIfSet() {
$this->assertEquals('bar', $this->config->getValue('foo'));
putenv('NC_foo=baz');
$this->assertEquals('baz', $this->config->getValue('foo'));
putenv('NC_foo'); // unset the env variable
}
public function testGetValueReturnsEnvironmentValueIfSetToZero() {
$this->assertEquals('bar', $this->config->getValue('foo'));
putenv('NC_foo=0');
$this->assertEquals('0', $this->config->getValue('foo'));
putenv('NC_foo'); // unset the env variable
}
public function testGetValueReturnsEnvironmentValueIfSetToFalse() {
$this->assertEquals('bar', $this->config->getValue('foo'));
putenv('NC_foo=false');
$this->assertEquals('false', $this->config->getValue('foo'));
putenv('NC_foo'); // unset the env variable
}
public function testSetValue() {
$this->config->setValue('foo', 'moo');
$expectedConfig = $this->initialConfig;